ATE4045T1 - Kontrolle des belebtschlammverfahrens, um hoehere phosphorentfernungsraten zu erreichen. - Google Patents

Kontrolle des belebtschlammverfahrens, um hoehere phosphorentfernungsraten zu erreichen.

Info

Publication number
ATE4045T1
ATE4045T1 AT80106093T AT80106093T ATE4045T1 AT E4045 T1 ATE4045 T1 AT E4045T1 AT 80106093 T AT80106093 T AT 80106093T AT 80106093 T AT80106093 T AT 80106093T AT E4045 T1 ATE4045 T1 AT E4045T1
Authority
AT
Austria
Prior art keywords
control
activated sludge
achieve higher
phosphorus removal
removal rates
Prior art date
Application number
AT80106093T
Other languages
English (en)
Inventor
Michael Shi-Kuan Chen
Eugene Joseph Greskovich
Marshall Louis Spector
Original Assignee
Air Products And Chemicals, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22176790&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE4045(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Air Products And Chemicals, Inc. filed Critical Air Products And Chemicals, Inc.
Application granted granted Critical
Publication of ATE4045T1 publication Critical patent/ATE4045T1/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1205—Particular type of activated sludge processes
    • C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/308—Biological phosphorus removal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/903—Nitrogenous
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/906—Phosphorus containing

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Removal Of Specific Substances (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Fats And Perfumes (AREA)
  • Jellies, Jams, And Syrups (AREA)
  • Saccharide Compounds (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Electric Clocks (AREA)
  • Activated Sludge Processes (AREA)
AT80106093T 1979-10-09 1980-10-07 Kontrolle des belebtschlammverfahrens, um hoehere phosphorentfernungsraten zu erreichen. ATE4045T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/083,196 US4271026A (en) 1979-10-09 1979-10-09 Control of activated sludge wastewater treating process for enhanced phosphorous removal
EP19800106093 EP0026938B1 (de) 1979-10-09 1980-10-07 Kontrolle des Belebtschlammverfahrens, um höhere Phosphorentfernungsraten zu erreichen

Publications (1)

Publication Number Publication Date
ATE4045T1 true ATE4045T1 (de) 1983-07-15

Family

ID=22176790

Family Applications (1)

Application Number Title Priority Date Filing Date
AT80106093T ATE4045T1 (de) 1979-10-09 1980-10-07 Kontrolle des belebtschlammverfahrens, um hoehere phosphorentfernungsraten zu erreichen.

Country Status (13)

Country Link
US (1) US4271026A (de)
EP (1) EP0026938B1 (de)
JP (1) JPS57113893A (de)
AT (1) ATE4045T1 (de)
AU (1) AU531468B2 (de)
CA (1) CA1143486A (de)
DE (1) DE3064050D1 (de)
DK (1) DK421580A (de)
ES (1) ES8107131A1 (de)
FI (1) FI803148L (de)
GR (1) GR70762B (de)
IL (1) IL61159A (de)
ZA (1) ZA806238B (de)

Families Citing this family (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353800A (en) * 1980-08-25 1982-10-12 Ferdinand Besik Method and an apparatus for biological treatment of waste waters
JPS5839599B2 (ja) * 1981-04-13 1983-08-31 荏原インフイルコ株式会社 有機性廃液からのリン除去法
US4421648A (en) * 1981-06-01 1983-12-20 Ferdinand Besik Apparatus and a method for biological treatment of waste waters
US4731185A (en) * 1981-07-13 1988-03-15 Air Products And Chemicals, Inc. Biological wastewater treating system
JPS58139791A (ja) * 1982-02-12 1983-08-19 Ebara Infilco Co Ltd 有機性廃液の処理法
NL8201293A (nl) * 1982-03-29 1983-10-17 Gist Brocades Nv Fluid-bed reactor voor het zuiveren van afvalwater.
EP0099421B1 (de) * 1982-07-21 1986-09-17 Air Products And Chemicals, Inc. Verfahren für die biologische Behandlung von Abwasser
US4488968A (en) * 1983-03-07 1984-12-18 Air Products And Chemicals, Inc. Removal of phosphates and BOD from wastewaters
US4488967A (en) * 1983-03-07 1984-12-18 Air Products And Chemicals, Inc. Treatment of wastewater containing phosphorus compounds
GB2155003B (en) * 1984-01-20 1987-12-31 Nishihara Env San Res Co Ltd Activated sludge method
US4650585A (en) * 1984-04-17 1987-03-17 Air Products And Chemicals, Inc. Method for minimizing diurnal swing in phosphorus content of effluent streams from wastewater treating plants
US4552663A (en) * 1984-07-31 1985-11-12 Air Products And Chemicals, Inc. Process for the removal of ammoniacal nitrogen in the BOD sorption zone of a wastewater treatment plant
HU205330B (en) * 1986-05-19 1992-04-28 Tatabanyai Banyak Vallalat Process for purifying sewage containing organic material, by increased removal of phosphorus and nitrogen
DE3644770C1 (de) * 1986-12-30 1988-06-01 Linde Ag Verfahren zur Reinigung phosphathaltiger Abwaesser mittels biologischer Phosphorelimination sowie Anlage zur Durchfuehrung dieses Verfahrens
US4846965A (en) * 1987-09-14 1989-07-11 Clifft Ricky C Oxygen controlling wastewater treatment system
US4898672A (en) * 1987-09-14 1990-02-06 Clifft Ricky C Oxygen controlling wastewater treatment method
FR2621136A1 (de) * 1987-09-24 1989-03-31 Lyonnaise Eaux
US5013441A (en) * 1988-07-20 1991-05-07 Goronszy Mervyn C Biological nutrient removal with sludge bulking control in a batch activated sludge system
US4919815A (en) * 1989-02-06 1990-04-24 Zimpro/Passavant Inc. Two-stage anaerobic/aerobic treatment process
FR2667057B1 (fr) * 1990-09-25 1993-07-09 Degremont Reacteur perfectionne pour le traitement biologique des eaux residuaires.
IT1249625B (it) * 1991-06-10 1995-03-09 Enea Procedimento per il trattamento depurativo delle acque di scarico municipali, e impianto che utilizza il detto procedimento
US5182021A (en) * 1991-12-16 1993-01-26 Lehigh University Biological process for enhanced removal of ammonia, nitrite, nitrate, and phosphate from wastewater
US5288405A (en) * 1993-01-27 1994-02-22 Piedmont Olsen Hensley, Inc. Wastewater treatment with enhanced biological phosphorus removal and related purification processes
US5380438A (en) * 1993-08-17 1995-01-10 City Of Atlanta Treatment of wastewater through enhanced biological phosphorus removal
US5702499A (en) * 1994-01-18 1997-12-30 Sim Associates Waste conversion by liquid thermophilic aerobic digestion
KR20000069628A (ko) 1996-12-20 2000-11-25 브라이언 디어 세척 방법
US6096214A (en) 1997-12-01 2000-08-01 Freese And Nichols, Inc. Process for applying alternating anaerobic contact processing for the treatment of wastewater
AU2003236421B2 (en) * 1998-03-04 2006-12-14 Mikkel G. Mandt Surge Anoxic Mix Sequencing Batch Reactor Systems
US6190554B1 (en) * 1998-03-04 2001-02-20 Mikkel G. Mandt Surge anoxic mix sequencing batch reactor systems
AU2893999A (en) * 1998-03-04 1999-09-20 Mikkel G. Mandt Surge anoxic mix sequencing batch reactor systems
JP3601976B2 (ja) * 1998-06-16 2004-12-15 シャープ株式会社 排水処理方法および排水処理装置
US8518704B2 (en) * 1999-08-03 2013-08-27 Advanced Micro Devices, Inc. System and method for monitoring and/or controlling attributes of multiple chemical mixtures with a single sensor
US6592757B2 (en) * 2000-02-01 2003-07-15 O'brien & Gere Engineers, Inc. Selector contact stabilization process and apparatus for wastewater treatment
US6565750B2 (en) 2000-08-31 2003-05-20 O'brien & Gere Engineers, Inc. Trickling filter system for biological nutrient removal
AUPR421501A0 (en) 2001-04-04 2001-05-03 U.S. Filter Wastewater Group, Inc. Potting method
AUPR692401A0 (en) 2001-08-09 2001-08-30 U.S. Filter Wastewater Group, Inc. Method of cleaning membrane modules
US6712970B1 (en) * 2002-01-11 2004-03-30 Enviroquip, Inc. Sewage treatment process with phosphorus removal
US7247238B2 (en) 2002-02-12 2007-07-24 Siemens Water Technologies Corp. Poly(ethylene chlorotrifluoroethylene) membranes
AUPS300602A0 (en) 2002-06-18 2002-07-11 U.S. Filter Wastewater Group, Inc. Methods of minimising the effect of integrity loss in hollow fibre membrane modules
US6872313B1 (en) * 2002-09-23 2005-03-29 Agrimond Usa Corporation Domestic wastewater treatment system
JP4282598B2 (ja) 2002-10-10 2009-06-24 シーメンス・ウォーター・テクノロジーズ・コーポレーション 濾過装置及び該濾過装置を洗浄する方法
AU2002953111A0 (en) 2002-12-05 2002-12-19 U. S. Filter Wastewater Group, Inc. Mixing chamber
US8268176B2 (en) * 2003-08-29 2012-09-18 Siemens Industry, Inc. Backwash
ATE549075T1 (de) * 2003-11-14 2012-03-15 Siemens Industry Inc Verbessertes modulreinigungsverfahren
US8758621B2 (en) * 2004-03-26 2014-06-24 Evoqua Water Technologies Llc Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis
JP2007535398A (ja) 2004-04-22 2007-12-06 シーメンス ウォーター テクノロジース コーポレイション 有機物質を消化するためのメンブレンバイオリアクタおよび処理槽を含む濾過装置ならびに廃液処理方法
JP4958779B2 (ja) 2004-08-20 2012-06-20 シーメンス・ウォーター・テクノロジーズ・コーポレイション 正方形のｍｂｒマニホールド・システム
WO2006026814A1 (en) 2004-09-07 2006-03-16 Siemens Water Technologies Corp. Reduction of backwash liquid waste
AU2005284677B2 (en) * 2004-09-14 2010-12-23 Evoqua Water Technologies Llc Methods and apparatus for removing solids from a membrane module
CN100548452C (zh) 2004-09-15 2009-10-14 西门子水技术公司 一种薄膜过滤系统以及控制薄膜过滤系统中积垢的方法
US7172699B1 (en) 2004-10-13 2007-02-06 Eimco Water Technologies Llc Energy efficient wastewater treatment for nitrogen and phosphorus removal
US7591950B2 (en) 2004-11-02 2009-09-22 Siemens Water Technologies Corp. Submerged cross-flow filtration
CN100546701C (zh) * 2004-12-24 2009-10-07 西门子水技术公司 简单的气体冲洗方法和装置
WO2006066319A1 (en) * 2004-12-24 2006-06-29 Siemens Water Technologies Corp. Cleaning in membrane filtration systems
CA2605757A1 (en) 2005-04-29 2006-11-09 Siemens Water Technologies Corp. Chemical clean for membrane filter
US7344643B2 (en) * 2005-06-30 2008-03-18 Siemens Water Technologies Holding Corp. Process to enhance phosphorus removal for activated sludge wastewater treatment systems
CN101287538B (zh) 2005-08-22 2013-03-06 西门子工业公司 使用歧管以减少回洗的水过滤装置
EP1928794A4 (de) * 2005-09-02 2012-05-09 Siemens Industry Inc Absieben von inerten feststoffen aus einem abwasserbehandlungsverfahren mit geringer bioschlammbildung
US20070138090A1 (en) 2005-10-05 2007-06-21 Jordan Edward J Method and apparatus for treating wastewater
US7563363B2 (en) 2005-10-05 2009-07-21 Siemens Water Technologies Corp. System for treating wastewater
US7833415B2 (en) * 2005-10-26 2010-11-16 D.C. Water & Sewer Authority Method for treating raw sludge including a simultaneous or pulsed aerobic/anoxic digestion process
KR20080074222A (ko) * 2005-12-09 2008-08-12 지멘스 워터 테크놀로지스 코포레이션 역세정 체적 감소 프로세스
US20090001018A1 (en) * 2006-01-12 2009-01-01 Fufang Zha Operating Strategies in Filtration Processes
US7455765B2 (en) 2006-01-25 2008-11-25 Siemens Water Technologies Corp. Wastewater treatment system and method
US7473364B2 (en) * 2006-03-07 2009-01-06 Siemens Water Technologies Corp. Multivalent metal ion management for low sludge processes
US7569148B2 (en) 2006-08-23 2009-08-04 Siemens Water Technologies Corp. Continuous membrane filtration and solids reduction
KR20090046966A (ko) * 2006-08-31 2009-05-11 지멘스 워터 테크놀로지스 코포레이션 저압 역세척
US8293098B2 (en) * 2006-10-24 2012-10-23 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
EP2111288A4 (de) * 2007-02-16 2013-07-10 Siemens Industry Inc Membranfiltrationsverfahren und -konzept
EP2129629A1 (de) * 2007-04-02 2009-12-09 Siemens Water Technologies Corp. Verbesserte infiltrations-/flusssteuerung für einen membranbioreaktor
US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
CN101652169A (zh) * 2007-04-04 2010-02-17 西门子水处理技术公司 膜组件的保护
CA2686937A1 (en) * 2007-05-29 2008-12-04 Siemens Water Technologies Corp. Membrane cleaning using an airlift pump
CA3058737C (en) 2007-05-29 2022-04-26 Fufang Zha Membrane cleaning with pulsed airlift pump
EP2158026A4 (de) * 2007-06-28 2011-06-29 Siemens Industry Inc Reinigungsverfahren für einfache filtriersysteme
US20090050561A1 (en) * 2007-08-20 2009-02-26 Jon Inman Sattler System and method for processing wastewater
MX2010010532A (es) 2008-03-28 2010-11-05 Siemens Water Tech Corp Sistemas y metodos hibridos de tratamiento aerobico y anaerobico de aguas residuales y lodos.
US8894856B2 (en) 2008-03-28 2014-11-25 Evoqua Water Technologies Llc Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
AU2009273775B2 (en) * 2008-07-24 2014-11-20 Evoqua Water Technologies Llc Frame system for membrane filtration modules
WO2010019751A1 (en) * 2008-08-14 2010-02-18 Siemens Water Technologies Corp. Block configuration for large scale membrane distillation
KR20110044312A (ko) * 2008-08-20 2011-04-28 지멘스 워터 테크놀로지스 코포레이션 멤브레인 시스템의 향상된 역세척 에너지 효율
JP4995215B2 (ja) * 2009-03-23 2012-08-08 前澤工業株式会社 汚水処理設備
WO2010141560A1 (en) * 2009-06-02 2010-12-09 Siemens Water Technologies Corp. Membrane cleaning with pulsed gas slugs and global aeration
AU2010257526A1 (en) 2009-06-11 2012-01-12 Siemens Industry, Inc Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane
US8685247B2 (en) * 2009-12-03 2014-04-01 Evoqua Water Technologies Llc Systems and methods for nutrient removal in biological treatment systems
EP2560922A4 (de) 2010-04-21 2015-10-07 Evoqua Water Technologies Pte Ltd Verfahren und systeme zur abwasserbearbeitung
CN102869432B (zh) 2010-04-30 2016-02-03 伊沃夸水处理技术有限责任公司 流体流分配装置
US8808544B2 (en) 2010-08-18 2014-08-19 Evoqua Water Technologies Llc Contact-stabilization/prime-float hybrid
US9359236B2 (en) 2010-08-18 2016-06-07 Evoqua Water Technologies Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
WO2012040412A1 (en) 2010-09-24 2012-03-29 Siemens Industry, Inc. Fluid control manifold for membrane filtration system
US9908800B2 (en) * 2011-04-14 2018-03-06 Global Water Group, Incorporated System and method for wastewater treatment
US9604166B2 (en) 2011-09-30 2017-03-28 Evoqua Water Technologies Llc Manifold arrangement
KR102177864B1 (ko) 2011-09-30 2020-11-13 에보쿠아 워터 테크놀로지스 엘엘씨 아이솔레이션 밸브
AU2013280452B2 (en) 2012-06-28 2017-07-20 Evoqua Water Technologies Llc A potting method
AU2013231145B2 (en) 2012-09-26 2017-08-17 Evoqua Water Technologies Llc Membrane potting methods
DE112013004713T5 (de) 2012-09-26 2015-07-23 Evoqua Water Technologies Llc Membransicherungsvorrichtung
EP2900356A1 (de) 2012-09-27 2015-08-05 Evoqua Water Technologies LLC Gaswäscher für tauchmembranen
WO2014182533A1 (en) 2013-05-06 2014-11-13 Erdogan Argun O Wastewater biosorption with dissolved air flotation
HUE061765T2 (hu) 2013-10-02 2023-08-28 Rohm & Haas Electronic Mat Singapore Pte Ltd Berendezés membrán filtrációs modul javítására
EP3322511B1 (de) 2015-07-14 2022-09-07 Rohm & Haas Electronic Materials Singapore Pte. Ltd Belüftungsvorrichtung für filtrationssystem

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730882A (en) * 1972-06-13 1973-05-01 Biospherics Inc Internal precipitation of phosphate in settling zone
US3756946A (en) * 1972-06-13 1973-09-04 Biospherics Inc Sewage treatment process
SU784754A3 (ru) * 1975-06-04 1980-11-30 Юнион Карбид Корпорейшн (Фирма) Способ биохимической очистки сточных вод, содержащих фосфор
US4042493A (en) * 1975-10-28 1977-08-16 Union Carbide Corporation Phosphate removal from BOD-containing wastewater
US4162153A (en) * 1976-04-12 1979-07-24 Air Products And Chemicals, Inc. High nitrogen and phosphorous content biomass produced by treatment of a BOD-containing material
US4056465A (en) * 1976-04-12 1977-11-01 Air Products And Chemicals, Inc. Production of non-bulking activated sludge
DE2641750A1 (de) * 1976-09-16 1978-03-23 Vysoka Skola Chem Tech Verfahren zur reinigung von abwasser mit einem hohen gehalt an organischen stoffen
US4183808A (en) * 1977-11-23 1980-01-15 Union Carbide Corporation Phosphate removal from wastewater
US4173531A (en) * 1977-11-23 1979-11-06 Union Carbide Corporation Nitrification-denitrification of wastewater

Also Published As

Publication number Publication date
DE3064050D1 (en) 1983-08-11
IL61159A0 (en) 1980-11-30
ZA806238B (en) 1981-09-30
DK421580A (da) 1981-04-10
CA1143486A (en) 1983-03-22
FI803148A7 (fi) 1981-04-10
EP0026938B1 (de) 1983-07-06
AU6304880A (en) 1981-04-16
ES495736A0 (es) 1981-09-16
JPS6312680B2 (de) 1988-03-22
IL61159A (en) 1983-07-31
US4271026A (en) 1981-06-02
ES8107131A1 (es) 1981-09-16
AU531468B2 (en) 1983-08-25
GR70762B (de) 1983-03-16
FI803148L (fi) 1981-04-10
JPS57113893A (en) 1982-07-15
EP0026938A1 (de) 1981-04-15

Similar Documents

Publication Publication Date Title
ATE4045T1 (de) Kontrolle des belebtschlammverfahrens, um hoehere phosphorentfernungsraten zu erreichen.
HK38082A (en) Method of treating waste water and sludge product thereof
EP0132609A3 (de) System für biologische Abwasserbehandlung
IE830992L (en) Process for producing ribavirin
DE3061640D1 (en) Process for reabsorption and retention of phosphorus by activated biomass
EP0223263A3 (de) Verfahren zum Reinigen von Uridindiphosphat-N-acetylgalactosamin
GB1535549A (en) Method of purifying waste water
ES8200850A1 (es) Procedimiento para hacer optima la actividad metabolica de microorganismos en el substrato de un sistema reactivo bio- logico
JPS5389259A (en) Process for biologically denitrification of organic waste water
JPS5362357A (en) Method of treating waste water
JPS5541840A (en) Aerobic, high temperature fermentation treatment of sewage and system therefor
ATE21117T1 (de) Gaerungsverfahren zur herstellung von alphaisopropylapfels|ure.
ES312586A1 (es) Procedimiento para la obtencion de una nueva lipasa estable de gran actividad.
JPS5212762A (en) Method of treating waste water
JPS5370560A (en) Method of treating waste water
JPS53133964A (en) Reaction system in use of anaerobic organisms
GB1527292A (en) Electrolytic flotation
JPS53145359A (en) Activated sludge disposal method
JPS52111270A (en) Treating method and system for malodorous substance from kraft pulp fa ctory
JPS5320664A (en) Activated sludge treatment process
IE41385B1 (en) Phosphate stripping of sewage
JPS5212203A (en) Method for the decolorization of waste lubricating oil
GB1501560A (en) Biological treatment of waste water
JPS5228160A (en) Wagon style pre treatment system
JPS5228466A (en) Process for treatment of concentrated sludge

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
RZN Patent revoked